INSC was founded on 11th November 1990 by the Ineternational Nuclear Societies Group (INSG), an international group of Nuclear Societies. Current INSC Member Societies are:
- American Nuclear Society (ANS)
- Asociacion Argentina de Tecnologia Nuclear (AATN)
- Associação Brasileira de Energia Nuclear (ABEN)
- Atomic Energy Society of Japan (AESJ)
- Australian Nuclear Association (ANA)
- Canadian Nuclear Society (CNS)
- Egyptian Society of Nuclear Science and Applications (ESNSA)
- European Nuclear Society (ENS)
- Austrian Nuclear Society
- Belgian Nuclear Society
- Bulgarian Nuclear Society
- Croatian Nuclear Society
- Czech Nuclear Society
- Finnish Nuclear Society
- French Nuclear Energy Society
- German Nuclear Society
- Hungarian Nuclear Society
- Israel Nuclear Society
- Italian Nuclear Association
- Lithuanian Nuclear Energy Association
- Netherlands Nuclear Society
- The Nuclear Institute
- Nuclear Society of Russia
- Nuclear Society of Serbia
- Nuclear Society of Slovenia
- Polish Nuclear Society
- Romanian Nuclear Energy Association
- Slovak Nuclear Society
- Spanish Nuclear Society
- Swedish Nuclear Society
- Swiss Nuclear Society
- Indian Nuclear Society (InNS)
- Israel Nuclear Society (IsNS)
- Korean Nuclear Society (KNS)
- Latin American Section (LAS)
- Nuclear Energy Society Taipei (NEST)
- Pakistan Nuclear Society (PNS)
- Sociedad Nuclear Mexicana (SNM)
- Nuclear Society of Thailand (NST)
- Women in Nuclear-Global (WiN-Global)